1 definition by Nothing But Rock

Top Definition
One of the ultimate insults and comebacks of the world, along with "So's your face", "That's what she said" and "Ya Mum".

It is said either by the person who insulted you, or a by stander who witnessed the insultation.

Can be used quite effectively with others in the "Ultimate Insult" group.
Trever: Hey do it harder, man!
Donald: That's what ya mum said!
Ben: Oooooooh Burn!
by Nothing But Rock September 05, 2008
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